Emily Atack has revealed a colleague once exposed himself to her and pressurised her in to having sex - leaving her in floods of tears.
Atack says the incident occurred in a hotel room after a wrap party for a project she had worked on.
The pest, who she refers to only as Dave, cornered the actress in the room after she and a group of pals had been wandering the hotel in a search for alcohol.
The 29-year-old told The Sun: “I was drunk. I wasn’t single. I was with someone at the time, so I had no intention of doing anything with anybody.”
One friend gave her a room key saying there was a mini fridge with alcohol in the room.
After investigating, the I’m a Celeb… runner-up realised there was no booze in the room. She added: “And all of a sudden I turned round and Dave is standing there, in the room with his d*** out. I froze. I remember saying, drunkenly, ‘No’, but I didn’t have a clue what to do.”
Dave refused to let her leave, and in a panic she kissed him before fleeing.
She said: “He let me leave and the next day I cried my eyes out all day.”
In her book Are We There Yet?: To indignity . . . and Beyond!, she writes: “I’d love to say that with age, courage and experience, if it happened now, I’d kick him in the balls.
“But when you’re drunk, in a room with a man who holds more power than you, instinct takes over, to get you the hell out of there.”
Atack first come to the nation’s attention playing schoolgirl Charlotte Hinchcliffe in teen comedy The Inbetweeners. She has since took part in the fifth series of Dancing on Ice and lost out to Harry Redknapp in last year’s I’m a Celebrity… finale.